This ProMag magazine is a 20-round magazine designed to fit Ruger-57 pistols chambered in 5.7 x 28 mm. The magazine uses a heat-treated steel body and an injection-molded follower, and the spring is formed from heat-treated chrome-silicone wire. Durable and straightforward in design, this magazine provides a serviceable replacement or spare for users of the Ruger-57 platform. Its heat-treated steel construction and mil-spec style components are intended to deliver consistent feeding and handling in everyday use. Whether preparing a kit or adding a functional spare, this magazine offers a simple, industry-standard option for owners of Ruger-57 pistols.

•The capacity is 20 rounds.

•Compatible with Ruger-57 pistols chambered in 5.7 x 28 mm.

•The magazine body is constructed of heat-treated steel.

•Finish/color is listed variably as Black Oxide and Blued/Blue Steel in source materials.

•Includes an injection-molded magazine follower.

•The magazine spring is formed from heat-treated chrome-silicone wire.

•Product type is listed as Magazine.

•Fit is specified as Ruger-57.

•Country of manufacture is listed as Made in USA.

This item is restricted in the following cities and/or states: CA, CO, CT, DE, HI, IL, MA, MD, NJ, NY, OR, RI, VT, WA, DC.

Please check your State, County and City restrictions before ordering mag >10 rounds.